1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
18 Revision 1.10 2000/10/02 21:28:15 fca
19 Removal of useless dependecies via forward declarations
21 Revision 1.9 2000/09/12 17:00:45 morsch
22 Overlaps in YMO3 and YMO4 (side-effect from last update only) corrected.
24 Revision 1.8 2000/09/12 16:11:43 morsch
25 - Bug in volume YGO2 corrected: PCON started with twice the same z-value.
26 - Recesses for chambers added to outer Pb cone.
28 Revision 1.7 2000/06/15 09:40:31 morsch
29 Obsolete typedef keyword removed
31 Revision 1.6 2000/06/13 15:01:38 morsch
32 Make kind of heavy shielding material (Pb, NiCuW) dependent on presence of outer cone.
34 Revision 1.5 2000/06/12 19:40:00 morsch
35 New structure of beam pipe and heating jacket.
36 Optional outer Pb cone added. Not yet compatible with chamber inner radii.
38 Revision 1.4 2000/04/03 08:13:40 fca
39 Introduce extra scope for non ANSI compliant C++ compilers
41 Revision 1.3 2000/01/17 10:29:30 morsch
42 Overlap between Shield and Absorber due to limited numerical precision removed
43 by displacing the Shield by epsilon = 0.01 cm.
45 Revision 1.2 2000/01/13 11:27:51 morsch
46 Overlaps corrected: YCS3, YCS4; Inner radius YS21 corrected
48 Revision 1.1 2000/01/12 15:44:03 morsch
49 Standard version of SHIL
53 ///////////////////////////////////////////////////////////////////////////////
55 // Muon Shield Class //
56 // This class contains a description of the muon shield //
60 <img src="picts/AliSHILClass.gif">
65 ///////////////////////////////////////////////////////////////////////////////
67 #include "AliSHILv0.h"
74 //_____________________________________________________________________________
75 AliSHILv0::AliSHILv0()
78 // Default constructor for muon shield
82 //_____________________________________________________________________________
83 AliSHILv0::AliSHILv0(const char *name, const char *title)
87 // Standard constructor for muon shield
92 // Pb cone not yet compatible with muon chamber inner radii
93 // Switched off by default
97 //_____________________________________________________________________________
98 void AliSHILv0::CreateGeometry()
101 // Build muon shield geometry
106 <img src="picts/AliSHILv0.gif">
111 <img src="picts/AliSHILv0Tree.gif">
115 Float_t cpar[5], cpar0[5], tpar[3], par1[39], par2[27], par3[27],
119 Int_t *idtmed = fIdtmed->GetArray()-1699;
121 #include "ABSOSHILConst.h"
122 #include "SHILConst.h"
124 enum {kC=1705, kAl=1708, kFe=1709, kCu=1710, kW=1711, kPb=1712,
125 kNiCuW=1720, kVacuum=1714, kAir=1714, kConcrete=1716,
126 kPolyCH2=1717, kSteel=1709, kInsulation=1713};
128 // Material of the rear part of the shield
130 if (fPbCone) iHeavy=kPb;
136 Float_t dRear1=dRear;
138 Float_t zstart=zRear-dRear1;
144 Float_t dl=(zvac12-zstart)/2.;
149 par0[5] = zstart * TMath::Tan(accMin);
151 par0[6] = -dl+dRear1;
153 par0[8] = zRear * TMath::Tan(accMin);
155 par0[9] = -dl+dRear1;
159 par0[12] = -dz+zvac4;
163 par0[15] = -dz+zvac4;
167 par0[18] = -dz+zvac6;
171 par0[21] = -dz+zvac6;
173 par0[23] = zvac6 * TMath::Tan(accMin);
175 par0[24] = -dz+zConeE;
179 par0[27] = -dz+zvac10;
183 par0[30] = -dz+zvac10;
187 par0[33] = -dz+zvac11;
191 par0[36] = -dz+zvac11;
195 par0[39] = -dz+zvac12;
199 gMC->Gsvolu("YMOT", "PCON", idtmed[kVacuum], par0, 42);
201 gMC->Gspos("YMOT", 1, "ALIC", 0., 0., dz, 0, "ONLY");
207 // First section: bellows below and behind front absorber
213 dl=(zvac4-zstart)/2.;
216 par1[4] = rAbs+(zstart-zOpen) * TMath::Tan(thetaOpen1);
217 par1[5] = zstart * TMath::Tan(accMin);
219 par1[6] = -dl+zvac1-zstart;
220 par1[7] = rAbs+ (zvac1-zOpen) * TMath::Tan(thetaOpen1);
221 par1[8] = zvac1 * TMath::Tan(accMin);
223 par1[9] = par1[6]+dr11;
224 par1[10] = par1[7]+dr11;
225 par1[11] = (zvac1+dr11) * TMath::Tan(accMin);
227 par1[12] = -dl+dRear1;
229 par1[14] = zRear * TMath::Tan(accMin);
231 par1[15] = -dl+dRear1;
235 par1[18] = -dl+(zvac1+dr11+dB1-zstart);
239 par1[21] = par1[18]+dr12;
240 par1[22] = par1[19]+dr12;
243 par1[24] = par1[21]+dF1;
247 par1[27] = par1[24]+dr12;
248 par1[28] = par1[25]-dr12;
251 par1[30] = par1[27]+dB1;
255 par1[33] = par1[30]+dr13;
256 par1[34] = par1[31]-dr13;
259 par1[36] = -dl+zvac4-zstart;
260 par1[37] = par1[34]+(zvac4-zvac3)*TMath::Tan(thetaOpen2);
264 Float_t rBox=par1[31]-0.1;
266 gMC->Gsvolu("YGO1", "PCON", idtmed[kNiCuW], par1, 39);
267 { // Begin local scope for i
268 for (Int_t i=4; i<38; i+=3) par1[i] = 0;
269 } // End local scope for i
270 gMC->Gsvolu("YMO1", "PCON", idtmed[kVacuum+40], par1, 39);
271 gMC->Gspos("YGO1", 1, "YMO1", 0., 0., 0., 0, "ONLY");
273 gMC->Gspos("YMO1", 1, "YMOT", 0., 0., dZ, 0, "ONLY");
278 tpar[0]=R11-dRSteel1;
281 gMC->Gsvolu("YSE1", "TUBE", idtmed[kNiCuW], tpar, 3);
283 gMC->Gspos("YSE1", 1, "YGO1", 0., 0., dz, 0, "ONLY");
285 // 1st section: vacuum system
293 gMC->Gsvolu("YB11", "TUBE", idtmed[kSteel+40], tpar, 3);
298 tpar[2]=(lB1/2.-2.*eB1)/2.;
299 gMC->Gsvolu("YB12", "TUBE", idtmed[kSteel+40], tpar, 3);
305 gMC->Gsvolu("YB13", "TUBE", idtmed[kSteel+40], tpar, 3);
312 gMC->Gsvolu("YBU1", "TUBE", idtmed[kVacuum+40], tpar, 3);
315 gMC->Gspos("YB13", 1, "YBU1", 0., 0., dz, 0, "ONLY");
318 gMC->Gspos("YB11", 1, "YBU1", 0., 0., dz, 0, "ONLY");
321 gMC->Gspos("YB12", 1, "YBU1", 0., 0., dz, 0, "ONLY");
324 gMC->Gspos("YB11", 2, "YBU1", 0., 0., dz, 0, "ONLY");
327 gMC->Gspos("YB13", 2, "YBU1", 0., 0., dz, 0, "ONLY");
333 gMC->Gsvolu("YBM1", "TUBE", idtmed[kVacuum+40], tpar, 3);
335 { // Begin local scope for i
336 for (Int_t i=0; i<10; i++) {
337 gMC->Gspos("YBU1", i+1 , "YBM1", 0., 0., dz, 0, "ONLY");
340 } // End local scope for i
341 dz=-dl+(zvac1-zstart)+dr11+tpar[2];
342 gMC->Gspos("YBM1", 1, "YMO1", 0., 0., dz, 0, "ONLY");
344 dz=dl-dr13-(zvac4-zvac3)-tpar[2];
345 gMC->Gspos("YBM1", 2, "YMO1", 0., 0., dz, 0, "ONLY");
353 gMC->Gsvolu("YFM1", "TUBE", idtmed[kVacuum+40], tpar, 3);
358 gMC->Gsvolu("YF11", "TUBE", idtmed[kSteel+40], tpar, 3);
359 gMC->Gspos("YF11", 1, "YFM1", 0., 0., 0., 0, "ONLY");
364 gMC->Gsvolu("YF12", "TUBE", idtmed[kSteel+40], tpar, 3);
366 gMC->Gspos("YF12", 1, "YFM1", 0., 0., dz, 0, "ONLY");
368 gMC->Gspos("YF12", 2, "YFM1", 0., 0., dz, 0, "ONLY");
370 dz=-dl+(zvac2-zstart);
371 gMC->Gspos("YFM1", 2, "YMO1", 0., 0., dz, 0, "ONLY");
374 // pipe between flange and bellows
377 tpar[2]=2.*(dB1+dr12-10.*lB1)/4.;
378 gMC->Gsvolu("YPF1", "TUBE", idtmed[kSteel+40], tpar, 3);
380 dz=-dl+(zvac2-zstart)-dF1/2.-tpar[2];
381 gMC->Gspos("YPF1", 1, "YMO1", 0., 0., dz, 0, "ONLY");
382 dz=-dl+(zvac2-zstart)+dF1/2.+tpar[2];
383 gMC->Gspos("YPF1", 2, "YMO1", 0., 0., dz, 0, "ONLY");
385 // pipe and heating jackets outside bellows
388 cpar0[0]=(zvac1-zstart)/2;
389 cpar0[1]=rVacu+(zstart-zOpen)*TMath::Tan(thetaOpen1)-0.05;
390 cpar0[2]=rAbs +(zstart-zOpen)*TMath::Tan(thetaOpen1);
391 cpar0[3]=cpar0[1]+2.*cpar0[0]*TMath::Tan(thetaOpen1);
392 cpar0[4]=cpar0[2]+2.*cpar0[0]*TMath::Tan(thetaOpen1);
393 gMC->Gsvolu("YV11", "CONE", idtmed[kSteel+40], cpar0, 5);
398 cpar[1]=cpar0[1]+0.15;
399 cpar[2]=cpar0[1]+0.65;
400 cpar[3]=cpar0[3]+0.15;
401 cpar[4]=cpar0[3]+0.65;
402 gMC->Gsvolu("YI11", "CONE", idtmed[kInsulation+40], cpar, 5);
403 gMC->Gspos("YI11", 1, "YV11", 0., 0., 0., 0, "ONLY");
406 cpar[1]=cpar0[1]+0.75;
407 cpar[2]=cpar0[1]+1.25;
408 cpar[3]=cpar0[3]+0.75;
409 cpar[4]=cpar0[3]+1.25;
410 gMC->Gsvolu("YP11", "CONE", idtmed[kVacuum+40], cpar, 5);
411 gMC->Gspos("YP11", 1, "YV11", 0., 0., 0., 0, "ONLY");
414 gMC->Gspos("YV11", 1, "YMO1", 0., 0., dz, 0, "ONLY");
419 cpar0[0]=(zvac4-zvac3)/2;
421 cpar0[2]=cpar0[1]+dVacuS;
423 cpar0[3]=cpar0[1]+2.*cpar0[0]*TMath::Tan(thetaOpenB);
424 cpar0[4]=cpar0[2]+2.*cpar0[0]*TMath::Tan(thetaOpenB);
425 gMC->Gsvolu("YV12", "CONE", idtmed[kSteel], cpar0, 5);
426 Float_t r2V=cpar0[3];
430 cpar[1]=cpar0[1]+dTubeS;
431 cpar[2]=cpar0[1]+dTubeS+dInsuS;
432 cpar[3]=cpar0[3]+dTubeS;
433 cpar[4]=cpar0[3]+dTubeS+dInsuS;
434 gMC->Gsvolu("YI12", "CONE", idtmed[kInsulation], cpar, 5);
435 gMC->Gspos("YI12", 1, "YV12", 0., 0., 0., 0, "ONLY");
439 cpar[1]=cpar0[1]+dTubeS+dInsuS+dEnveS;
440 cpar[2]=cpar0[1]+dTubeS+dInsuS+dEnveS+dFreeS;
441 cpar[3]=cpar0[3]+dTubeS+dInsuS+dEnveS;
442 cpar[4]=cpar0[3]+dTubeS+dInsuS+dEnveS+dFreeS;
443 gMC->Gsvolu("YP12", "CONE", idtmed[kAir], cpar, 5);
444 gMC->Gspos("YP12", 1, "YV12", 0., 0., 0., 0, "ONLY");
447 gMC->Gspos("YV12", 1, "YMO1", 0., 0., dz, 0, "ONLY");
450 // Between first and second bellow section
459 par2[4] = r2+(zvac4-zvac3) * TMath::Tan(thetaOpen2);
462 par2[6] = -dl+(zvac6-zvac4);
463 par2[7] = r2+(zvac6-zvac3) * TMath::Tan(thetaOpen2);
466 par2[9] = -dl+(zvac6-zvac4);
468 par2[11] = zvac6*TMath::Tan(accMin);
470 // Start of Pb section
471 par2[12] = -dl+(zPb-zvac4);
472 par2[13] = r2+(zPb-zvac3) * TMath::Tan(thetaOpen2);
473 par2[14] = zPb*TMath::Tan(accMin);
476 // end of cone following 2 deg line
477 par2[15] = -dl+(zConeE-zvac4);
478 par2[16] = r2+(zConeE-zvac3) * TMath::Tan(thetaOpen2);
481 par2[18] = -dl+(zvac7-zvac4);
482 par2[19] = r2+(zvac7-zvac3) * TMath::Tan(thetaOpen2);
486 gMC->Gsvolu("YGO2", "PCON", idtmed[kNiCuW+40], par2, 21);
488 // Lead cone option replacing Tungsten
494 Float_t dlPb=(zvac7-zPb)/2.;
498 parPb[5] = zPb*TMath::Tan(accMin);
500 parPb[6] = -dlPb+(zConeE-zPb);
501 parPb[7] = parPb[4]+(zConeE-zPb)*TMath::Tan(thetaOpenPb);
505 parPb[10] = parPb[7]+(zvac7-zConeE)*TMath::Tan(thetaOpenPb);
508 Float_t rPbLast=parPb[10];
511 gMC->Gsvolu("YXO2", "PCON", idtmed[kPb], parPb, 12);
512 gMC->Gspos("YXO2", 1, "YGO2", 0., 0., (zPb-zvac4)/2., 0, "ONLY");
514 parPb[4] = r2+(zPb-zvac3) * TMath::Tan(thetaOpen2);
517 parPb[7] = r2+(zConeE-zvac3) * TMath::Tan(thetaOpen2);
518 parPb[8] = parPb[5]+(zConeE-zPb)*TMath::Tan(thetaOpenPb);
520 parPb[10] = r2+(zvac7-zvac3) * TMath::Tan(thetaOpen2);
521 parPb[11] = parPb[8]+(zvac7-zConeE)*TMath::Tan(thetaOpenPb);
523 gMC->Gsvolu("YYO2", "PCON", idtmed[iHeavy+40], parPb, 12);
524 gMC->Gspos("YYO2", 1, "YGO2", 0., 0., (zPb-zvac4)/2., 0, "ONLY");
527 { // Begin local scope for i
528 for (Int_t i=4; i<23; i+=3) par2[i] = 0;
529 } // End local scope for i
531 gMC->Gsvolu("YMO2", "PCON", idtmed[kVacuum+40], par2, 24);
532 gMC->Gspos("YGO2", 1, "YMO2", 0., 0., 0., 0, "ONLY");
534 gMC->Gspos("YMO2", 1, "YMOT", 0., 0., dZ, 0, "ONLY");
540 tpar[0]=R11-dRSteel1;
543 gMC->Gsvolu("YS21", "TUBE", idtmed[kSteel], tpar, 3);
545 gMC->Gspos("YS21", 1, "YGO2", 0., 0., dz, 0, "ONLY");
548 tpar[0]=R21-dRSteel2;
550 tpar[2]=(zvac6-zvac5)/2.;
551 gMC->Gsvolu("YS22", "TUBE", idtmed[kSteel], tpar, 3);
553 gMC->Gspos("YS22", 1, "YGO2", 0., 0., dz, 0, "ONLY");
557 cpar[1]=R21-dRSteel2;
558 cpar[2]=zvac6 * TMath::Tan(accMin);
560 cpar[4]=cpar[2]+4.*TMath::Tan(accMin);
561 gMC->Gsvolu("YS23", "CONE", idtmed[kSteel], cpar, 5);
563 gMC->Gspos("YS23", 1, "YGO2", 0., 0., dz, 0, "ONLY");
566 cpar[0]=(zPb-zvac6-4.)/2;
568 cpar[4]=cpar[2]+2.*cpar[0]*TMath::Tan(accMin);
569 cpar[1]=cpar[2]-dRSteel2;
570 cpar[3]=cpar[4]-dRSteel2;
572 gMC->Gsvolu("YS24", "CONE", idtmed[kSteel], cpar, 5);
574 gMC->Gspos("YS24", 1, "YGO2", 0., 0., dz, 0, "ONLY");
578 cpar[0]=(zConeE-zPb)/2;
580 cpar[4]=cpar[2]+2.*cpar[0]*TMath::Tan(accMin);
581 cpar[1]=cpar[2]-dRSteel2;
582 cpar[3]=cpar[4]-dRSteel2;
584 gMC->Gsvolu("YS25", "CONE", idtmed[kSteel], cpar, 5);
586 gMC->Gspos("YS25", 1, "YXO2", 0., 0., dz, 0, "ONLY");
591 tpar[2]=(zvac7-zConeE)/2.;
593 gMC->Gsvolu("YS26", "TUBE", idtmed[kSteel], tpar, 3);
595 gMC->Gspos("YS26", 1, "YXO2", 0., 0., dz, 0, "ONLY");
598 // Recess in steel for station 3
602 tpar[2]=(zch32-zch31)/2.;
603 gMC->Gsvolu("YS27", "TUBE", idtmed[kAir], tpar, 3);
604 dz+=(tpar[2]+zch31-zConeE);
606 gMC->Gspos("YS27", 1, "YS26", 0., 0., dz, 0, "ONLY");
610 // 2nd section: vacuum system
612 cpar0[0]=(zvac7-zvac4)/2;
615 cpar0[3]=cpar0[1]+2.*cpar0[0]*TMath::Tan(thetaOpenB);
616 cpar0[4]=cpar0[2]+2.*cpar0[0]*TMath::Tan(thetaOpenB);
617 gMC->Gsvolu("YV21", "CONE", idtmed[kSteel+40], cpar0, 5);
621 cpar[1]=cpar0[1]+dTubeS;
622 cpar[2]=cpar0[1]+dTubeS+dInsuS;
623 cpar[3]=cpar0[3]+dTubeS;
624 cpar[4]=cpar0[3]+dTubeS+dInsuS;
625 gMC->Gsvolu("YI21", "CONE", idtmed[kInsulation+40], cpar, 5);
626 gMC->Gspos("YI21", 1, "YV21", 0., 0., 0., 0, "ONLY");
629 cpar[1]=cpar0[1]+dTubeS+dInsuS+dEnveS;
630 cpar[2]=cpar0[1]+dTubeS+dInsuS+dEnveS+dFreeS;
631 cpar[3]=cpar0[3]+dTubeS+dInsuS+dEnveS;
632 cpar[4]=cpar0[3]+dTubeS+dInsuS+dEnveS+dFreeS;
633 gMC->Gsvolu("YP21", "CONE", idtmed[kAir+40], cpar, 5);
634 gMC->Gspos("YP21", 1, "YV21", 0., 0., 0., 0, "ONLY");
637 gMC->Gspos("YV21", 1, "YMO2", 0., 0., dz, 0, "ONLY");
641 // Third Section: Bellows and Flange
649 par3[4] = r2+(zvac7-zvac3) * TMath::Tan(thetaOpen2);
653 par3[7] = par3[4]+dr21;
656 par3[9] = par3[6]+dB2;
660 par3[12] = par3[9]+dr22;
661 par3[13] = par3[10]+dr22;
664 par3[15] = par3[12]+dF2;
668 par3[18] = par3[15]+dr22;
669 par3[19] = par3[16]-dr22;
672 par3[21] = par3[18]+dB2;
676 par3[24] = par3[21]+dr23;
677 par3[25] = par3[22]-dr23;
683 gMC->Gsvolu("YGO3", "PCON", idtmed[iHeavy+40], par3, 27);
688 parPb[3] = parPb[1]+2.*dl*TMath::Tan(thetaOpenPb);
690 gMC->Gsvolu("YXO3", "CONE", idtmed[kPb], parPb, 5);
691 gMC->Gspos("YXO3", 1, "YGO3", 0., 0., 0., 0, "ONLY");
692 { // Begin local scope for i
693 for (Int_t i=4; i<26; i+=3) par3[i] = 0;
694 } // End local scope for i
695 gMC->Gsvolu("YMO3", "PCON", idtmed[kVacuum+40], par3, 27);
696 gMC->Gspos("YGO3", 1, "YMO3", 0., 0., 0., 0, "ONLY");
703 gMC->Gsvolu("YS31", "TUBE", idtmed[kSteel], tpar, 3);
704 gMC->Gspos("YS31", 1, "YXO3", 0., 0., 0., 0, "ONLY");
706 gMC->Gspos("YMO3", 1, "YMOT", 0., 0., dZ, 0, "ONLY");
710 // 3rd section: vacuum system
718 gMC->Gsvolu("YB21", "TUBE", idtmed[kSteel+40], tpar, 3);
723 tpar[2]=(lB2/2.-2.*eB2)/2.;
724 gMC->Gsvolu("YB22", "TUBE", idtmed[kSteel+40], tpar, 3);
730 gMC->Gsvolu("YB23", "TUBE", idtmed[kSteel+40], tpar, 3);
737 gMC->Gsvolu("YBU2", "TUBE", idtmed[kVacuum+40], tpar, 3);
740 gMC->Gspos("YB23", 1, "YBU2", 0., 0., dz, 0, "ONLY");
743 gMC->Gspos("YB21", 1, "YBU2", 0., 0., dz, 0, "ONLY");
746 gMC->Gspos("YB22", 1, "YBU2", 0., 0., dz, 0, "ONLY");
749 gMC->Gspos("YB21", 2, "YBU2", 0., 0., dz, 0, "ONLY");
752 gMC->Gspos("YB23", 2, "YBU2", 0., 0., dz, 0, "ONLY");
758 gMC->Gsvolu("YBM2", "TUBE", idtmed[kVacuum+40], tpar, 3);
760 { // Begin local scope for i
761 for (Int_t i=0; i<7; i++) {
762 gMC->Gspos("YBU2", i+1 , "YBM2", 0., 0.,dz , 0, "ONLY");
765 } // End local scope for i
767 gMC->Gspos("YBM2", 1, "YMO3", 0., 0., dz, 0, "ONLY");
770 gMC->Gspos("YBM2", 2, "YMO3", 0., 0., dz, 0, "ONLY");
778 gMC->Gsvolu("YFM2", "TUBE", idtmed[kVacuum+40], tpar, 3);
783 gMC->Gsvolu("YF21", "TUBE", idtmed[kSteel+40], tpar, 3);
784 gMC->Gspos("YF21", 1, "YFM2", 0., 0., 0., 0, "ONLY");
789 gMC->Gsvolu("YF22", "TUBE", idtmed[kSteel+40], tpar, 3);
791 gMC->Gspos("YF22", 1, "YFM2", 0., 0., dz, 0, "ONLY");
793 gMC->Gspos("YF22", 2, "YFM2", 0., 0., dz, 0, "ONLY");
796 gMC->Gspos("YFM2", 2, "YMO3", 0., 0., dz, 0, "ONLY");
800 // pipe between flange and bellows
803 tpar[2]=2.*(dB2+dr22-7.*lB2)/4.;
804 gMC->Gsvolu("YPF2", "TUBE", idtmed[kSteel+40], tpar, 3);
805 dz=dr21/2.-dr23/2.-dF2/2.-tpar[2];
806 gMC->Gspos("YPF2", 1, "YMO3", 0., 0., dz, 0, "ONLY");
807 dz=dr21/2.-dr23/2.+dF2/2.+tpar[2];
808 gMC->Gspos("YPF2", 2, "YMO3", 0., 0., dz, 0, "ONLY");
811 // 4th section: rear shield and closing cone
816 dl=(zvac12-zvac9)/2.;
822 par4[6] = -dl+(zvac10-zvac9);
823 par4[7] = r3+(zvac10-zvac9) * TMath::Tan(thetaOpen3);
830 par4[12] = -dl+(zvac11-zvac9);
831 par4[13] = r3+(zvac11-zvac9) * TMath::Tan(thetaOpen3);
838 par4[18] = -dl+(zvac12-zvac9);
842 gMC->Gsvolu("YGO4", "PCON", idtmed[iHeavy+40], par4, 21);
844 parPb[0] = (zvac10-zvac9)/2.;
847 parPb[3] = parPb[1]+2.*parPb[0]*TMath::Tan(thetaOpenPb);
849 gMC->Gsvolu("YXO4", "CONE", idtmed[kPb], parPb, 5);
850 gMC->Gspos("YXO4", 1, "YGO4", 0., 0., -dl+parPb[0], 0, "ONLY");
852 parPb[0] = (zvac12-zvac10)/2.;
855 parPb[3] = parPb[1]+2.*parPb[0]*TMath::Tan(thetaOpenPb);
857 gMC->Gsvolu("YXO5", "CONE", idtmed[kPb], parPb, 5);
858 gMC->Gspos("YXO5", 1, "YGO4", 0., 0., -dl+(zvac10-zvac9)+parPb[0], 0, "ONLY");
859 { // Begin local scope for i
860 for (Int_t i=4; i<20; i+=3) par4[i] = 0;
861 } // End local scope for i
863 gMC->Gsvolu("YMO4", "PCON", idtmed[kVacuum+40], par4, 21);
864 gMC->Gspos("YGO4", 1, "YMO4", 0., 0., 0., 0, "ONLY");
869 gMC->Gspos("YMO4", 1, "YMOT", 0., 0., dZ, 0, "ONLY");
872 // Closing concrete cone
874 cpar[0]=(zvac12-zvac11)/2.;
875 cpar[1] = r3+(zvac11-zvac9) * TMath::Tan(thetaOpen3);
876 cpar[2] = cpar[1]+0.001;
879 gMC->Gsvolu("YCC4", "CONE", idtmed[kConcrete+40], cpar, 5);
881 gMC->Gspos("YCC4", 1, "YGO4", 0., 0., dz, 0, "ONLY");
888 tpar[2]=(zvac10-zvac9)/2.;
889 gMC->Gsvolu("YS41", "TUBE", idtmed[kSteel], tpar, 3);
891 gMC->Gspos("YS41", 1, "YXO4", 0., 0., 0., 0, "ONLY");
897 gMC->Gsvolu("YS42", "TUBE", idtmed[kSteel], tpar, 3);
899 gMC->Gspos("YS42", 1, "YGO4", 0., 0., dz, 0, "ONLY");
902 tpar[0]=R41-dRSteel2;
904 tpar[2]=(zvac11-zvac10)/2.;
905 gMC->Gsvolu("YS43", "TUBE", idtmed[kSteel], tpar, 3);
907 gMC->Gspos("YS43", 1, "YGO4", 0., 0., dz, 0, "ONLY");
913 tpar[2]=(zvac11-zvac10)/2.;
914 gMC->Gsvolu("YPBI", "TUBE", idtmed[kPb+40], tpar, 3);
916 gMC->Gspos("YPBI", 1, "YGO4", 0., 0., dz, 0, "ONLY");
920 tpar[2]=(zvac11-zvac10)/2.;
921 gMC->Gsvolu("YPBO", "TUBE", idtmed[kPb], tpar, 3);
922 gMC->Gspos("YPBO", 1, "YPBI", 0., 0., 0., 0, "ONLY");
930 tpar[2]=(zvac12-zvac11)/2.;
931 gMC->Gsvolu("YFEI", "TUBE", idtmed[kFe+40], tpar, 3);
933 gMC->Gspos("YFEI", 1, "YGO4", 0., 0., dz, 0, "ONLY");
938 gMC->Gsvolu("YFEO", "TUBE", idtmed[kFe], tpar, 3);
939 dz=-(zvac12-zvac11)/2.+tpar[2];
940 gMC->Gspos("YFEO", 1, "YFEI", 0., 0., dz, 0, "ONLY");
947 gMC->Gsvolu("YAEM", "TUBE", idtmed[kAir], tpar, 3);
951 gMC->Gsvolu("YFEM", "TUBE", idtmed[kFe], tpar, 3);
952 gMC->Gspos("YFEM", 1, "YAEM", 0., 0., 0., 0, "ONLY");
957 gMC->Gspos("YAEM", 1, "ALIC", 0., 0., dz, 0, "ONLY");
962 // 4th section: vacuum system
964 // up to closing cone
965 cpar0[0]=(zvac11-zvac9)/2;
968 cpar0[3]=cpar0[1]+2.*cpar0[0]*TMath::Tan(thetaOpen3);
969 cpar0[4]=cpar0[2]+2.*cpar0[0]*TMath::Tan(thetaOpen3);
970 gMC->Gsvolu("YV31", "CONE", idtmed[kSteel+40], cpar0, 5);
974 cpar[1]=cpar0[1]+dTubeS;
975 cpar[2]=cpar0[1]+dTubeS+dInsuS;
976 cpar[3]=cpar0[3]+dTubeS;
977 cpar[4]=cpar0[3]+dTubeS+dInsuS;
978 gMC->Gsvolu("YI31", "CONE", idtmed[kInsulation+40], cpar, 5);
979 gMC->Gspos("YI31", 1, "YV31", 0., 0., 0., 0, "ONLY");
982 cpar[1]=cpar0[2]-dProtS-dFreeS;
983 cpar[2]=cpar0[2]-dProtS;
984 cpar[3]=cpar0[4]-dProtS-dFreeS;
985 cpar[4]=cpar0[4]-dProtS;
986 gMC->Gsvolu("YP31", "CONE", idtmed[kVacuum+40], cpar, 5);
987 gMC->Gspos("YP31", 1, "YV31", 0., 0., 0., 0, "ONLY");
990 gMC->Gspos("YV31", 1, "YMO4", 0., 0., dz, 0, "ONLY");
993 cpar0[0]=(zvac12-zvac11)/2;
994 cpar0[1]=r3-dVacuS+(zvac11-zvac9)*TMath::Tan(thetaOpen3);
995 cpar0[2]=r3 +(zvac11-zvac9)*TMath::Tan(thetaOpen3);
998 gMC->Gsvolu("YV32", "CONE", idtmed[kSteel+40], cpar0, 5);
1002 cpar[1]=cpar0[1]+dTubeS;
1003 cpar[2]=cpar0[1]+dTubeS+dInsuS;
1004 cpar[3]=cpar0[3]+dTubeS;
1005 cpar[4]=cpar0[3]+dTubeS+dInsuS;
1006 gMC->Gsvolu("YI32", "CONE", idtmed[kInsulation+40], cpar, 5);
1007 gMC->Gspos("YI32", 1, "YV32", 0., 0., 0., 0, "ONLY");
1010 cpar[1]=cpar0[2]-dProtS-dFreeS;
1011 cpar[2]=cpar0[2]-dProtS;
1012 cpar[3]=cpar0[4]-dProtS-dFreeS;
1013 cpar[4]=cpar0[4]-dProtS;
1014 gMC->Gsvolu("YP32", "CONE", idtmed[kVacuum+40], cpar, 5);
1015 gMC->Gspos("YP32", 1, "YV32", 0., 0., 0., 0, "ONLY");
1018 gMC->Gspos("YV32", 1, "YMO4", 0., 0., dz, 0, "ONLY");
1021 // MUON trigger wall
1025 tpar[2] = (zFilterOut - zFilterIn) / 2.;
1026 gMC->Gsvolu("YFIM", "TUBE", idtmed[kFe+40], tpar, 3);
1027 dz = (zFilterIn + zFilterOut) / 2.;
1029 gMC->Gsvolu("YFII","TUBE", idtmed[kFe], tpar, 3);
1030 gMC->Gspos("YFII", 1, "YFIM", 0., 0., 0., 0, "ONLY");
1031 gMC->Gspos("YFIM", 1, "ALIC", 0., 0., dz, 0, "ONLY");
1033 // Shielding close to chamber
1036 cpar[0]=(zch11-zRear)/2.;
1038 cpar[2]=zRear*TMath::Tan(accMin);
1040 cpar[4]=(zRear+2.*cpar[0])*TMath::Tan(accMin);
1041 gMC->Gsvolu("YCS1", "CONE", idtmed[kNiCuW], cpar, 5);
1043 gMC->Gspos("YCS1", 1, "ALIC", 0., 0., dz, 0, "ONLY");
1046 cpar[0]=(zvac4-zch12)/2.;
1048 cpar[2]=(zvac4-2.*cpar[0])*TMath::Tan(accMin);
1051 gMC->Gsvolu("YCS2", "CONE", idtmed[kNiCuW], cpar, 5);
1053 gMC->Gspos("YCS2", 1, "ALIC", 0., 0., dz, 0, "ONLY");
1056 cpar[0]=(zch12-zch11-2.)/2.;
1058 cpar[2]=(zch11+2.)*TMath::Tan(accMin);
1060 cpar[4]=cpar[2]+2.*cpar[0]*TMath::Tan(accMin);
1061 gMC->Gsvolu("YCS3", "CONE", idtmed[kNiCuW], cpar, 5);
1062 dz=(zch11+zch12)/2.;
1063 gMC->Gspos("YCS3", 1, "ALIC", 0., 0., dz, 0, "ONLY");
1066 cpar[0]=(zch21-zvac4)/2.;
1068 cpar[2]=zvac4*TMath::Tan(accMin);
1070 cpar[4]=(zvac4+2.*cpar[0])*TMath::Tan(accMin);
1071 gMC->Gsvolu("YCS4", "CONE", idtmed[kNiCuW], cpar, 5);
1073 gMC->Gspos("YCS4", 1, "ALIC", 0., 0., dz, 0, "ONLY");
1076 cpar[0]=(zvac6-zch22)/2.;
1078 cpar[2]=(zvac6-2.*cpar[0])*TMath::Tan(accMin);
1080 cpar[4]=zvac6*TMath::Tan(accMin);
1081 gMC->Gsvolu("YCS5", "CONE", idtmed[kNiCuW], cpar, 5);
1083 gMC->Gspos("YCS5", 1, "ALIC", 0., 0., dz, 0, "ONLY");
1086 cpar[0]=(zch22-zch21-2.)/2.;
1088 cpar[2]=(zch21+2.)*TMath::Tan(accMin);
1090 cpar[4]=cpar[2]+2.*cpar[0]*TMath::Tan(accMin);
1091 gMC->Gsvolu("YCS6", "CONE", idtmed[kNiCuW], cpar, 5);
1092 dz=(zch21+zch22)/2.;
1093 gMC->Gspos("YCS6", 1, "ALIC", 0., 0., dz, 0, "ONLY");
1111 par0[8] = 30.+(zch31-zConeE)*TMath::Tan(thetaOpenPbO);
1115 par0[11] = par0[8]-1.;
1120 par0[14] = par0[11];
1124 par0[ 5] = 30.+(zch32-zConeE)*TMath::Tan(thetaOpenPbO);
1129 par0[ 8] = 30.+(zch41-zConeE)*TMath::Tan(thetaOpenPbO);
1137 par0[14] = par0[11];
1141 par0[17] = 30.+(zch42-zConeE)*TMath::Tan(thetaOpenPbO);
1146 par0[20] = 30.+(zch51-zConeE)*TMath::Tan(thetaOpenPbO);
1150 par0[23] = 37.5; // recess erice2000
1154 par0[26] = par0[23];
1158 par0[29] = 30.+(zch52-zConeE)*TMath::Tan(thetaOpenPbO);
1160 par0[30] = zFilterIn;
1162 par0[32] = par0[29];
1164 gMC->Gsvolu("YOPB", "PCON", idtmed[kPb], par0, 33);
1166 gMC->Gspos("YOPB", 1, "ALIC", 0., 0., dz, 0, "ONLY");
1170 void AliSHILv0::Init()
1173 // Initialise the muon shield after it has been built
1178 for(i=0;i<35;i++) printf("*");
1179 printf(" SHILv0_INIT ");
1180 for(i=0;i<35;i++) printf("*");
1183 // Here the SHIL initialisation code (if any!)
1184 for(i=0;i<80;i++) printf("*");